Journal Article

No evidence for the cold spot in the NVSS radio survey

Kendrick M. Smith and Dragan Huterer

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 403, issue 1, pages 2-8
Published in print March 2010 | ISSN: 0035-8711
Published online March 2010 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2009.15732.x
No evidence for the cold spot in the NVSS radio survey

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We revisit recent claims that there is a ‘cold spot’ in both number counts and brightness of radio sources in the NRAO (National Radio Astronomy Observatory) VLA (Very Large Array) Sky Survey (NVSS), with location coincident with the previously detected cold spot in Wilkinson Microwave Anisotropy Probe. Such matching cold spots would be difficult if not impossible to explain in the standard Λcold dark matter cosmological model. Contrary to the claim, we find no significant evidence for the radio cold spot, after including systematic effects in NVSS, and carefully accounting for the effect of a posteriori choices when assessing statistical significance.

Keywords: cosmic microwave background; large-scale structure of Universe

Journal Article.  5862 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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